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Finding the Fourth Proportional to 656,458.54, 905,877.86 and 366,099.92

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Solution

The fourth proportional to 656,458.54, 905,877.86 and 366,099.92 is: 505,198.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,458.54 : 905,877.86 = 366,099.92 : x
  2. Step 2: Convert to fraction form
    656,458.54/905,877.86 = 366,099.92/x
  3. Step 3: Cross multiply
    656,458.54x = 905,877.86 × 366,099.92
  4. Step 4: Simplify right side
    656,458.54x = 331,641,812,075.77
  5. Step 5: Solve for x
    x = 331,641,812,075.77/656,458.54
  6. Step 6: Final answer
    x = 505,198.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.